Edith Heard (born 1965) is a British researcher in epigenetics.
She is a Professor at the Collège de France, holding the Chair of Epigenetics and Cellular Memory, and the Director General of the European Molecular Biology Laboratory (EMBL) since January 2019.
From 2010 to 2018, Heard was the Director of the Genetics and Developmental Biology department at the Curie Institute (Paris), France.
Heard is noted for her studies of X chromosome inactivation.